NCT04418869

Brief Summary

Regular physical activity is an important part of diabetes management in adolescents with type 1 diabetes (T1D). Increased physical activity has several beneficial effects such as improved lipid profile, insulin sensitivity and quality of life. In addition, a reduced HbA1c is often seen in association to increased physical activity. However, the effect on glycemic control and the acute glycemic response seems to differs between different types of exercise. This issue is poorly studied in adolescents with T1D and the mechanism behind this is not fully understood. The primary aim of this study was to compare the acute effects on glycemia of resistance and two aerobic continuous and intermittent exercise bouts in adolescents with type 1 diabetes. Secondarily, the investigators want to compare the different exercise according to hormonal changes and expression of mRNA in muscle. At a baseline visit the participants was tested for maximal oxygen consumption (pVO2peak) and maximal strength (1-RM). The study participants then performed three exercise bouts and one control session (resting), each on 45 minutes, in a randomized order. Measurement was performed during and after the exercise.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
8

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2014

Longer than P75 for not_applicable

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2014

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 27, 2016

Completed
3.9 years until next milestone

First Submitted

Initial submission to the registry

May 15, 2020

Completed
21 days until next milestone

First Posted

Study publicly available on registry

June 5, 2020

Completed
4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2024

Completed
Last Updated

October 31, 2022

Status Verified

March 1, 2021

Enrollment Period

2.3 years

First QC Date

May 15, 2020

Last Update Submit

October 28, 2022

Conditions

Keywords

Type 1 diabetesExerciseAdolescents

Outcome Measures

Primary Outcomes (1)

  • Change in plasma glucose during exercise and recovery

    Plasma glucose (mmol/l) measured by an hand-held glucometer

    Plasma glucose were measured at 5 minutes before and at start of the bouts. Thereafter glucose was measured at 5,10,15,30 and 45 minutes during exercise. In addition glucose were measured at 15, 30, 45 and 60 minutes during the initial recovery period.

Secondary Outcomes (7)

  • Sensor glucose

    Blinded continuous glucose measurement was started when the exercise bouts were finished and were there after used during the next 22 hours (until the next morning at 08:00 am).

  • Changes in levels of hormones during exercise and recovery

    Serum samples were collected at baseline and after 15 ,30 ,45 of exercise and after 15 minutes of recovery for later analysis

  • Change in levels of messenger ribonucleic acid (mRNA) between baseline and exercise.

    One biopsy (baseline) were collected approximately one week before the first exercise bout and thereafter one biopsy appr. 60 minutes after each exercise bout.

  • Comparisons of levels of messenger ribonucleic acid (mRNA) between different exercise bouts.

    One biopsy was collected appr. 60 minutes after each exercise bout.

  • Change in heart rate during exercise.

    Heart rate was monitored continuously during exercise from 5 minutes before start of exercise until the bout was finished (time-point 45 minutes).

  • +2 more secondary outcomes

Study Arms (1)

Exercise

EXPERIMENTAL

All subject will perform three different exercise bouts and one control session.

Other: Exercise bouts

Interventions

Each subject performed three bouts with 45 minutes of exercise (continuous exercise, intermittent exercise and resistance exercise) in a randomized order. In addition a control session were performed where the subjects sat on a chair for 45 minutes.

Exercise

Eligibility Criteria

Age16 Years - 18 Years
Sexmale(Gender-based eligibility)
Gender Eligibility DetailsGender is based on personal identity number and self-identification.
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Male
  • Type 1 diabetes
  • Regularly performing physical activity
  • Aged 16-18 years old

You may not qualify if:

  • Less than 0.5 U/kg in insulin requirements
  • Duration of diabetes less than one year.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Diabetes Mellitus, Type 1Motor Activity

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesAutoimmune DiseasesImmune System DiseasesBehavior

Study Officials

  • Fawzi Kadi, Professor

    School of health Sciences, Örebro University, Sweden

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 15, 2020

First Posted

June 5, 2020

Study Start

March 1, 2014

Primary Completion

June 27, 2016

Study Completion

June 1, 2024

Last Updated

October 31, 2022

Record last verified: 2021-03

Data Sharing

IPD Sharing
Will not share